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📊 Text Analyzer

Sentence Counter

Count sentences, words, characters and paragraphs instantly. Full text analysis with readability score, reading time and sentence breakdown.

📝0Sentences
🔤0Words
🔡0Characters
0Paragraphs
Your text 0 chars
0Chars (no spaces)
0Unique words
0Syllables
0Lines
📊 Text analysis & readability Flesch score: —
Very difficult (0) Standard (60) Very easy (100)
📖—Reading time
🎤—Speaking time
📏—Avg sentence length
Word type density
Short words (1-4 chars)
0%
Medium words (5-8 chars)
0%
Long words (9+ chars)
0%
Unique word ratio
0%
📝 Sentence breakdown
📋
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About this sentence counter

This tool performs instant, comprehensive text analysis entirely in your browser — no data is sent to any server. All counts update in real time as you type, giving you immediate feedback on your writing.

📝 Sentence counting

Sentences end with . ! or ?. The counter correctly handles abbreviations (Dr., etc.), ellipsis (...), decimal numbers (3.14), and common patterns to avoid false positives.

📊 Flesch Reading Ease

Scores 0-100. Higher = easier to read. Formula: 206.835 − 1.015×(words/sentences) − 84.6×(syllables/words). Most web content targets 60-70 for broad accessibility.

⏱️ Reading & speaking time

Reading: 238 words/minute (research average for adults). Speaking: 130 words/minute (presentation pace). These are averages — individual speeds vary significantly.

🔡 Syllable counting

Syllables are counted using standard English phonetic rules — vowel groups, silent-e endings, common suffixes. Approximate for very unusual words but accurate for typical writing.

Frequently asked questions

Traditional writing guidelines suggest 3-8 sentences per paragraph. Online writing often uses shorter paragraphs (2-4 sentences) for scannability. Academic writing typically uses longer paragraphs (5-8 sentences) to develop arguments. The best paragraph length depends on your medium, audience, and purpose.
Research suggests an average of 15-20 words per sentence for optimal readability. Sentences over 30 words become hard to follow. Vary your sentence length deliberately — short sentences create impact, longer ones build rhythm. A mix of short and long sentences is more engaging than uniform length.
Contractions like "don't", "can't", "they're" are counted as ONE word each — which is correct. They are single orthographic words regardless of the apostrophe. The word count matches what standard word processors (Microsoft Word, Google Docs) report.
No. This tool runs entirely in your browser using JavaScript. Your text never leaves your device — it is not transmitted to any server, not stored in any database, and not used for any purpose other than the analysis displayed on your screen. You can verify this by using the tool offline.
🔗 Related tools
📝Word CounterCount words & chars ⏱️Reading TimeEstimate reading time 🔢Character CounterCount characters